2000 - Volume #24, Issue #4, Page #07
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Add-On Valve Gives Deere 4020 Four Remote Outlets
He brazed a T pipe fitting to an elbow in an existing hydraulic line, then ran a hose from it up to the add-on valve. A return hose runs from the extra valve back to the tractor's transmission case.
Two of the three spools are used to operate the tractor's front-end loader, while the third one is used to operate implements on back. A 3/8-in. dia. steel rod controls the third spool which runs into a connector block on back of the tractor.
A wobble stick and wobble box valve, mounted higher on the fender, are used to control the extra hydraulics.
"I spent about $150 for the 3-spool valve, which is much less than I would have paid for a commercial unit," says Davies. "The hose and closed center valve are under pressure all the time. However, the only time oil goes through the valve is when we activate the lever. The operator uses only one hand to control all loader operations. He moves the wobble stick right or left to tilt the bucket up or down and moves it forward or backward to raise or lower the loader."
Contact: FARM SHOW Followup, Donald Davies, Rt. 1, Box 194, Dawn, Mo. 84638 (ph 660 745-3350; fax 3360).
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